Need help on this fast plz

Is the orthocenter of a triangle on the inside ?

Lisa has three classes that each last 50 minutes. what is the total number of minutes of the three classes

Use the formulas a = x 2 – y 2, b = 2xy, c = x 2 + y 2 to answer this question. one leg of a right triangle has length 11 and all sides are whole numbers. find the lengths of the other two sides. the other leg = a0 and the hypotenuse = a1